You have a young, foreign-born, lottery-pick point guard who has struggled lately as a rookie.

So you trade for a young, foreign-born lottery-pick point guard who has struggled since entering the league in 2015-16. What does that tell the other guy?

Nothing negative, Knicks coach Jeff Hornacek hopes.

Hornacek does not think the acquisition of third-season guard Emmanuel Mudiay, 21, will have an adverse effect on Frank Ntilikina, 19. In fact, he envisions the two 6-foot-5 guards playing together at times. That’s something he hoped to glimpse at practice Saturday, but could not as the final paperwork and reports on trade physicals had not been completed. So Mudiay could not practice. He is expected to make his Knicks debut Sunday in Indiana.

“You get a good feel for guys’ mentality,” Hornacek said of fears Ntilikina may feel the organization lost faith in him. “To me, mentally weak guys think that. Mentally strong guys don’t think that. They say, ‘OK, bring on whoever, I don’t care.’ I can see in Frank that he has that mentality.”

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Confident the mental part is sound, Hornacek is excited about the two athletic points blending their talents.

“That’s where opportunities of them playing together are going to come,” Hornacek said. “They both have good size. They’re both [6-5] so you can mix the matchups. Two-guards in this league aren’t 6-7 anymore. Those are four-men now. A lot of teams play with a smaller guard so that could help us.”

The Knicks were awaiting the NBA to put a final stamp of approval on the three-team trade that sent Doug McDermott to the Mavericks, Dallas’ Devin Harris to Denver and the Nuggets’ Mudiay to the Knicks. Harris apparently was the last to report and everyone awaited the results of that physical.

Mudiay was at the Knicks’ practice facility Saturday but unavailable to do anything. His presence gives the Knicks four point guards — including veteran starter Jarrett Jack, whose minutes will decrease, and Trey Burke. Hornacek said he explained the new landscape to the particulars. Jack knows the deal, but is high on Mudiay’s potential.

“Athletic, young guard, aggressive getting to the basket. Can push the pace in transition, score,” Jack said. “In Denver it was an up-and-down role trying to find his way. I’m sure he wants to come somewhere to get a fresh start. It’s our job to help him out with it.”

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“I would expect it probably to change a little bit. There are four guards there, we can play two of them together,” said Hornacek, who met with Mudiay before practice in Tarrytown.

“We’ve talked a little bit. I wish we would’ve been able to get out here today and go through some things, but he wasn’t allowed to. So we’re going to continue to talk to him,” Hornacek added, lamenting an early Sunday start that negates shootaround. “We’ll go over things with him on film. He was able to watch things today at least, so I think he has a pretty good idea. I don’t think it will take long for him to adjust.”

Or Ntilikina to fully accept.

“We met this morning. I showed him some things on the film, just reassured him that those two can play together. But again, it’s always a competition,” Hornacek said. “You’ve seen it in the past here. Guys come back in the summer and that’s where you earn your minutes in the beginning of the year and that’s where you’re going, ‘OK, someone’s got to really beat me out.’ That healthy competition where you play together as a team but also are kind of competing … will help them both get better.”

Ntilikina may have run headlong into the rookie wall. Since his last double-figure points game Jan. 15, Ntilikina has plunged in virtually every category. In 12 games since, his drops show 33.3 percent shooting from 35.6, 4.0 points from 5.6, 2.7 assists from 3.5 and 0.3 steals from 1.1, while averaging 16.1 minutes, down from 21.1.